Granted Patent
Utility
US 5,380,507 · App. 07/915,579
Method of treating process or flue gases containing halogenous compounds
Inventors:
Matti Hiltunen, Kurt Westerlund
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Jul 20, 1992
Inventors
Matti Hiltunen
Kurt Westerlund
Assignee (at issue)
A. Ahlstrom Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.